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LC78622NE 参数 Datasheet PDF下载

LC78622NE图片预览
型号: LC78622NE
PDF下载: 下载PDF文件 查看货源
内容描述: 光盘播放器的DSP [Compact Disc Player DSP]
分类和应用:
文件页数/大小: 31 页 / 325 K
品牌: SANYO [ SANYO SEMICON DEVICE ]
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LC78622NE  
Note: 1. If focus is lost during the execution of an internal brake command, the pickup must first be refocussed  
and then the internal brake command must be reissued.  
2. Since incorrect deceleration state determination is possible depending on the EFM signal playback state  
(e.g., disk defects, access in progress), we recommend using these functions in combination with a  
microprocessor.  
+
7. Track Jump Circuit; Pin 15: HFL, pin 16: TES, pin 17: TOFF, pin 18: TGL, pin 19: JP , pin 20: JP  
• The LC78622NE supports the two track count modes listed below.  
MSB  
LSB  
0
Command  
RES = low  
0
0
0
0
1
1
0
0
0
0
0
0
1
1
NEW TRACK COUNT (using the TES/HFL combination)  
STANDARD TRACK COUNT (directly counts the TES signal)  
1
The earlier track count function uses the TES signal directly as the internal track counter clock.  
To reduce counting errors resulting from noise on the rising and falling edges of the TES signal, the new track  
count function prevents noise induced errors by using the combination of the TES and HFL signals, and  
implements a more reliable track count function. However, dirt and scratches on the disk can result in HFL signal  
dropouts that may result in missing track count pulses. Thus care is required when using this function.  
No. 6015-13/31